HIGH PERFORMANCE TIRE SEALANT. Extend tire life and protect the people and equipment that are riding on them. Since 1981 MULTI SEAL has manufactured high performance tire sealants, scientifically formulated to virtually eliminate air loss due to punctures and slow leaks. Using proprietary formulas and ingredients, MULTI SEAL products are blended in the United States specifically for industrial segments. MULTI SEAL is the world leader for superior tire sealant technology.